Add EV-iMX280-NANO-X-MB board
A simple prototyping board with one microSD port, one Ethernet port,
2 USB ports, I2C, SPI, GPIO, and UART interfaces.
Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index b944778..d29844e 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -822,6 +822,9 @@
dtb-$(CONFIG_O4_IMX_NANO) += \
o4-imx-nano.dtb
+dtb-$(CONFIG_EV_IMX280_NANO_X_MB) += \
+ ev-imx280-nano-x-mb.dtb
+
dtb-$(CONFIG_MX7) += imx7d-sdb.dtb \
imx7d-sdb-qspi.dtb \
imx7-cm.dtb \
diff --git a/arch/arm/dts/ev-imx280-nano-x-mb.dts b/arch/arm/dts/ev-imx280-nano-x-mb.dts
new file mode 100644
index 0000000..7aec076
--- /dev/null
+++ b/arch/arm/dts/ev-imx280-nano-x-mb.dts
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (C) 2021 Oleh Kravchenko <oleg@kaa.org.ua>
+
+/dts-v1/;
+
+#include "o4-imx6ull-nano.dtsi"
+
+/ {
+ model = "EV-iMX280-NANO-X-MB";
+ compatible = "evodbg,ev-imx280-nano-x-mb",
+ "out4,o4-imx6ull-nano",
+ "fsl,imx6ull";
+
+ aliases {
+ mmc1 = &usdhc1;
+ };
+
+ chosen {
+ stdout-path = &uart1;
+ };
+};
+
+&iomuxc {
+ pinctrl_uart1: uart1grp {
+ fsl,pins = <
+ MX6UL_PAD_UART1_RX_DATA__UART1_DCE_RX 0x1b0b1
+ MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1
+ >;
+ };
+
+ pinctrl_usdhc1: usdhc1grp {
+ fsl,pins = <
+ MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x10069
+ MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x17059
+ MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x17059
+ MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x17059
+ MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x17059
+ MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x17059
+ MX6UL_PAD_UART1_RTS_B__USDHC1_CD_B 0x03029
+ >;
+ };
+
+ pinctrl_mdio: mdiogrp {
+ fsl,pins = <
+ MX6UL_PAD_GPIO1_IO06__ENET1_MDIO 0x1b0b0
+ MX6UL_PAD_GPIO1_IO07__ENET1_MDC 0x1b0b0
+ MX6UL_PAD_SNVS_TAMPER1__GPIO5_IO01 0xb0b0 /* RST */
+ >;
+ };
+
+ pinctrl_usb_otg1_id: usbotg1idgrp {
+ fsl,pins = <
+ MX6UL_PAD_GPIO1_IO00__ANATOP_OTG1_ID 0x17059
+ >;
+ };
+};
+
+&uart1 {
+ pinctrl-0 = <&pinctrl_uart1>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&usdhc1 {
+ bus-width = <4>;
+ no-1-8-v;
+ pinctrl-0 = <&pinctrl_usdhc1>;
+ pinctrl-names = "default";
+ status = "okay";
+ wakeup-source;
+};
+
+&fec1 {
+ phy-handle = <&phy0>;
+ phy-mode = "rmii";
+ phy-reset-duration = <250>;
+ phy-reset-post-delay = <100>;
+ phy-reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
+ pinctrl-0 = <&pinctrl_fec1 &pinctrl_mdio>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy0: ethernet-phy@0 {
+ clocks = <&clks IMX6UL_CLK_ENET_REF>;
+ clock-names = "rmii-ref";
+ interrupt-parent = <&gpio5>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+ pinctrl-0 = <&pinctrl_phy0_irq>;
+ pinctrl-names = "default";
+ reg = <0>;
+ };
+ };
+};
+
+&usbotg1 {
+ dr_mode = "otg";
+ pinctrl-0 = <&pinctrl_usb_otg1_id>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&usbotg2 {
+ dr_mode = "host";
+ status = "okay";
+};